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yamahadon2

Joined:

Feb 13

Posts: 9

yamahadon2 says:

No Battery-Operated Electricals!

With the engine running on my '78 XT500, all the electricals work.  But with the engine off (battery power only), nothing works.  Any ideas?  The battery is new. 

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  • Posted 2 years ago (18 February 2013 15:40)

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eatcs01

Joined:

Aug 02

Posts: 3264

eatcs01 says:

xt

That's probably how it's meant to be.

Did it work BEFORE you put the new battery on??

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jaffa90

Joined:

Mar 09

Posts: 8874

jaffa90 says:

Battery

power only,for now and not sure,your side/pilot lights,horn,flashers and brake lights should work.

Follow and check that battery red lead to the main fuse and the earth lead to the frame connections.

Also after that check the ignition switch live in and out.

Have you a wiring diagram?

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yamahadon2

Joined:

Feb 13

Posts: 9

yamahadon2 says:

Battery-Operated Electricals

I put this bike together from a pile of parts, so I'm not sure how it's supposed to work normally.  With other 6V Yamaha enduros I've had, things like the flashers, horn and tail light work off the battery only. Thanks! 

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yamahadon2

Joined:

Feb 13

Posts: 9

yamahadon2 says:

Battery-Operated Electricals

I like your ignition switch idea -- it feels kind of loose. I'll check the wiring diagram for clues, too. Thanks!

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jaffa90

Joined:

Mar 09

Posts: 8874

jaffa90 says:

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yamahadon2

Joined:

Feb 13

Posts: 9

yamahadon2 says:

Battery-Operated Electricals

Thanks, guys.  I've got a wiring diagram, but I'm not smart enough to understand it completely.  But after looking at the diagram, I like the (1)  broken battery hot (red) wire (2) ungrounded battery, and (3) broken switch theories -- I'll check them all out tomorrow.  I knew I could count on the "experts!"  

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yamahadon2

Joined:

Feb 13

Posts: 9

yamahadon2 says:

Problem solved!

It was a bad fuse holder!  Thanks, guys!

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